421022330 has 32 divisors (see below), whose sum is σ = 798802560. Its totient is φ = 159330240.

The previous prime is 421022321. The next prime is 421022333. The reversal of 421022330 is 33220124.

It is a junction number, because it is equal to n+sod(n) for n = 421022299 and 421022308.

It is not an unprimeable number, because it can be changed into a prime (421022333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258920 + ... + 260540.

It is an arithmetic number, because the mean of its divisors is an integer number (24962580).

Almost surely, 2^421022330 is an apocalyptic number.

421022330 is a deficient number, since it is larger than the sum of its proper divisors (377780230).

421022330 is a wasteful number, since it uses less digits than its factorization.

421022330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 421022330 is about 20518.8286702726. The cubic root of 421022330 is about 749.4943732728.

Adding to 421022330 its reverse (33220124), we get a palindrome (454242454).

The spelling of 421022330 in words is "four hundred twenty-one million, twenty-two thousand, three hundred thirty".